<!DOCTYPE html>
<html lang="en">
<head>
    <script src="../js/vue.js"></script>
</head>
<body>
    <div id="app">
        <parent></parent>
    </div>
    <template id="child">
        <div>
            <button @click="click">Send</button>
            <input type="text" v-model="message">
        </div>
    </template>
    <script>
        Vue.component('parent',{
            template:'<div><child @childFn="transContent"></child>子组件传来的值：{{message}}</div>',
            data : function() {
                return {message : ''}
            },
            methods : {
                transContent(payload){
                    this.message = payload;
                }
            }
        });
        Vue.component('child',{
            template:'#child',
            data : function() {
                return {message : '子组件信息'}
            },
            methods : {
                click(){
                    this.$emit('childFn',this.message);
                }
            }
        });
        var vm = new Vue({
            el:'#app'
        });
    </script>
</body>
</html>